avformat/matroskadec: only set r_frame_rate if the value is within reasonable limits

Fixes Ticket2451 Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
11 years ago · 6853e40106
parent 746e3142ee
commit 6853e40106
1 changed files with 2 additions and 1 deletions
--- a/libavformat/matroskadec.c
+++ b/libavformat/matroskadec.c
@ -1847,6 +1847,7 @@ static int matroska_read_header(AVFormatContext *s)
                av_reduce(&st->avg_frame_rate.num, &st->avg_frame_rate.den,
                          1000000000, track->default_duration, 30000);
 #if FF_API_R_FRAME_RATE
+                if (st->avg_frame_rate.num < st->avg_frame_rate.den * 1000L)
                    st->r_frame_rate = st->avg_frame_rate;
 #endif
            }